Re: [PATCH] platform/x86/fujitsu-laptop: Replace sprintf() with sysfs_emit()

[Kuppuswamy Sathyanarayanan]

Hi,

On 4/28/24 12:26 PM, Szilard Fabian wrote:
> As suggested by Documentation/filesystems/sysfs.rst sysfs_emit() should be
> used when formatting the value to be returned to user space.
>
> Signed-off-by: Szilard Fabian <szfabian@xxxxxxxxxxxxx>
> ---

Reviewed-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@xxxxxxxxxxxxxxx>

>  drivers/platform/x86/fujitsu-laptop.c | 18 +++++++++---------
>  1 file changed, 9 insertions(+), 9 deletions(-)
>
> diff --git a/drivers/platform/x86/fujitsu-laptop.c b/drivers/platform/x86/fujitsu-laptop.c
> index 94480af49467..968fc91bd5e4 100644
> --- a/drivers/platform/x86/fujitsu-laptop.c
> +++ b/drivers/platform/x86/fujitsu-laptop.c
> @@ -386,11 +386,11 @@ static ssize_t lid_show(struct device *dev, struct device_attribute *attr,
>  	struct fujitsu_laptop *priv = dev_get_drvdata(dev);
>  
>  	if (!(priv->flags_supported & FLAG_LID))
> -		return sprintf(buf, "unknown\n");
> +		return sysfs_emit(buf, "unknown\n");
>  	if (priv->flags_state & FLAG_LID)
> -		return sprintf(buf, "open\n");
> +		return sysfs_emit(buf, "open\n");
>  	else
> -		return sprintf(buf, "closed\n");
> +		return sysfs_emit(buf, "closed\n");
>  }
>  
>  static ssize_t dock_show(struct device *dev, struct device_attribute *attr,
> @@ -399,11 +399,11 @@ static ssize_t dock_show(struct device *dev, struct device_attribute *attr,
>  	struct fujitsu_laptop *priv = dev_get_drvdata(dev);
>  
>  	if (!(priv->flags_supported & FLAG_DOCK))
> -		return sprintf(buf, "unknown\n");
> +		return sysfs_emit(buf, "unknown\n");
>  	if (priv->flags_state & FLAG_DOCK)
> -		return sprintf(buf, "docked\n");
> +		return sysfs_emit(buf, "docked\n");
>  	else
> -		return sprintf(buf, "undocked\n");
> +		return sysfs_emit(buf, "undocked\n");
>  }
>  
>  static ssize_t radios_show(struct device *dev, struct device_attribute *attr,
> @@ -412,11 +412,11 @@ static ssize_t radios_show(struct device *dev, struct device_attribute *attr,
>  	struct fujitsu_laptop *priv = dev_get_drvdata(dev);
>  
>  	if (!(priv->flags_supported & FLAG_RFKILL))
> -		return sprintf(buf, "unknown\n");
> +		return sysfs_emit(buf, "unknown\n");
>  	if (priv->flags_state & FLAG_RFKILL)
> -		return sprintf(buf, "on\n");
> +		return sysfs_emit(buf, "on\n");
>  	else
> -		return sprintf(buf, "killed\n");
> +		return sysfs_emit(buf, "killed\n");
>  }
>  
>  static DEVICE_ATTR_RO(lid);

-- 
Sathyanarayanan Kuppuswamy
Linux Kernel Developer